Safety razor



H` R. sEGAL SAFETY RAZOR 2 Sheets-Sheet ATTORNEY May w, w32.

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H. R. SEGAL.

SAFETY RAZOR May l0, 1932.,

Filed Jan. 30,11931 2 Sheets-Sheet 2 INVENTOR. H YMA/v 1Q. 556m., BY MW A TTRNES' Patented May 1*'0,1 1.932

NITED i STATES PATENT' OFFICE E R. SEG-AL, OF NEW YORK, N. Y., ASSIGNOR TO SEG-AL FOUNDERS CORPORATION,

Y 0F NEW YORK, N. Y., A CORPORATION OF NEW YORK SAFETY 'Razon Continuation of application Serial Nc.v 811,442, filed Octeber 10, 1928. This application iiled January 30,

1931. Serial No. 512,337. Y

j This invention relates to improvements in safety razors. This application is a conltir-mation of United States application, Serial No. 311,422,1iled'0ctober 10th, 1928,

d for Safety razors.

may be moved to position permitting the ready removal of the blade. n

it is a further object to provide improved features of construction in such safety razor including an improved blade for carrying out the above objects.

A still further object of the invention is` that of providing a holder and blade for use in connection therewith, the .former being adjustable to impart to the blade just exactly the desired degree of curvature, and the latter being constructed to reduce to a minimum extent the liability of breakage incident to.

strains imposed thereon.

These and other objects will appear more fully from the following description when considered in connection with the drawings, in which:

F ig. 1 is a side view of the razor, the head portion being shown in section;

- Fig. 2 is a transverse section taken at right angles to Fig. 1;

Fig. 3 is a sectional view showing-the parts in one adjusted position;

Fig. 4 is an outer face view of the razor showing the parts in position to remove the blades;

Fig. 5 is;y a longitudinal sectional view showing a modified form of my invention;

Fig. 6 is a similar view showing the parts moving to diderent positions;

Fig. 7 is an outer face view of the `form of the invention shown in Figs. 5 and 6, showing the parts in position' to remove the blade; I

Fig. S'lis a fragmental sectional view similar to Fig. 5 showing a further modification of my invention;

Fig. 9 is a view similar to F ig. 8, but show-k ing the parts moved to different positions;

Fig. 10 is an elevation view of a still further form of my invention showing the parts in condition for removing the blade; and

Figs. 11 and 12 are face views of the blades as shown in connection with the several preceding views and as hereinafter described in the specification. y)

In safety razors as heretofore constructed, it llas been customary to completely disassemble the razor in order to give access to :the blade fory cleansing the same or chang- By means of the construc-` ing the blade. tion herein illustrated such removal of the blade may be permitted while the parts are' maintained in assembled condition by simply loosening and suitably positioning the parts which form the frame as will appear more fully below.

It will be understood that the constructions herein disclosed are merely illustrative and that changes may be made therein so long as they fall within the `scope of the 'appended claims.

provided with outwardly projecting lugs 18 fora purpose to be referred to later. rlhe outer face ofthe guard 16v is formed with a recess 19 of general oval shape and encircling yhandle 14 but also transversely to the length of the guard 16 and keeper 20 so as to permit en'dwise tilting of the blade 20.' The shank vthe central portion of the guard, the shape 4 22 extends inwardly'through a reduced or bearing portion 24 of the handle 14 and is provided with a screw threaded portion 26 which has threaded therein the securing nut 27 and if desired a suitable washer 28. The inner end of the threaded portion 26 is received Within the screw threads of the securing nut 30 exposed adjacent the free end of the handle 14 as shown. The nut 30 may be secured against removal by means of the set screw 31 projecting into a peripheral groove in the shank portion of the nut 30 so as to normally prevent the removal of the nut, 30.

By having the studs 18 associate with the guard, it will be obvious that the positioning of the blade thereon is facilitated in that the blade may simply be dropped into position with the studs extending through the openings thereof and subsequently into the openings of the clamping plate. This construction also reduces the thickness of the clamping plate 20 so that the blade may be passed over the same without unnecessarily increasing the size of the slot in the blade.

As shown in Figs. 1, 2, 3 and 11, the blade 32 is provided with a pair of openings 33 for receiving the lugs 18 and with a central longitudinally disposed slot 34 positioned above the recess 19 referred to above so as to expose the recess when the blade is in operative position over the same as shown for example in Fig. 4.

It will be understood that, as shown in Fig. 12 and if desired, the slot 34 may extend to and include the openings 33 in which case it is desirable to retain the outer semicircular configuration of the openings 33. It is preferred however to have the arrangement shown of the separate openings and slot as indicated in Fig. 4 so as to give a greater contact surface between the openings 33 and lugs 18, and thus assist in retaining the blade in position when the clamping plate 20 is removed and to give additional strength to the blade by providing four connecting portions between the two edges of the blade.

The blade 32 is preferably formed with slightly rounded corners protected by the guard 16 the ends of the blade being substantially straight as indicated for example in Fig. 4. In order to .facilitate lifting the keeper 20 away from the blade and guard such keeper may be extended outwardly to a small extent beyond the blade 32 as shown in Fig. 1, or if desired the outer ends of the plate 20 may be undercut to facilitate the removal of this plate from the guard and blade.

In the use of the device as described above the nut 30 is unscrewed from the shank 22 and the clamping plate 20 is moved outwardly and tilted to the position shown in Fig. 3. The keeper is then turned about the axis of the shank 22 to a position at right angles t0 that shown in Fig. 3 and the plate 2O is then moved inwardly to rest Within the recess 19 in the outer face of the guard. The blade may then be introduced without diliiculty over the keeper 20 and onto the lugs 18. Thereafter the plate 20 fis moved outwardly to a slight extent and pivoted to a position into alignment with the guard 16, and thereupon when it is moved inwardly against the guard and the nut 30 is screwed on the threaded portion 26 and the razor is ready for use. The removal of the blade will be understood from the above description.

Referring to Figs.' 5, 6 and 7, the construction disclosed in these views is similar to that described above except that it is not required that the blade be flexed since the supporting surfaces between the guard 16a and the clampingplate 20a are substantially plain surfaces the entire head 12a being inclined to provide the proper shaving angle for the cutting edge of the blade.

The blade 32a may have an inclined slot 34a corresponding with the angle assumed by the keeper 20a when moved upwardly and tilted, such construction giving a slightly greater amountof metal between the openings 33a and the slot 34a thus further strenghening the blade. The recess 10a in the guard 16a will necessarily correspond with the inclination of the slot 34a all as to receive the keeper 20a' when the latter is elevated and dropped in the recess 19a as described above.

This form of the invention illustrates the pivot 23a placed transversely to the axis of the shank 22a and to the length of the keeper 20a to permit endwise tilting of the keeper thus showing the invention applicable to the rigd blades and inclined guard and keeper.

In Figs. 8, 9 and. 10 I have illustrated a different embodiment of the invention wherein 'the outer blade or keeper 206 is pivoted for movement on the axis of pivot pin 236 which extends transversely to the handle 146 and shank 226 but longitudinally of the keeper 206. According to this construction, the keeper 206 will be tilted sidewise instead of endwise as in the first forms of the invention. The blade 326 is provided with one elongated slot or opening 346 terminating in semi-cir cular end portions snugly fitting around the lugs 186 of the guard 166. As indicated in Figs. 9 and 10 the blade is removable by moving the blade 326 toward and beyond one end of the keeper 206, passing one end of the blade over one end of the keeper and then moving the blade in the reverse direction and off of the keeper 206.

This form of the invention is illustrated with an inclined guard and inclined keeper although it will be understood that the same is applicable to either this type or the curved ypce of guard and keeper shown in Figs. 1

From the foregoing, it will be understood that among others, the several objects of the 20 of ordinary type will not cooperate with holdinvention as specifically afore noted are achieved. Aside from the fact that a novel razor construction is provided, a blade is furnished which cooperates to maximum advantage with a holder of this type. More especially, it will be found that a blade such as developed by the present invention will be freely liexible in a direction transversely of its body, and without liability of cracking. This is especially true of the form of-blade shown in Fig. 12 wherein the bending stresses are relieved throughout the entire length of the opening or slot. Of course, to a great extent, this is also true of the structure shown in Fig. 11, and the additional advantage exists in both of these blades that incident to their peculiar construction, they'will cooperate to\.

best advantage with razors embodying a structure such as has been suggested in the several figures of the drawings, While blades ers of this character. As a consequence, the manufacturer is able to prevent blades of inferior types and quality being foisted upon the public for use in connection with razors of its manufacture.

Obviously, numerous changes in construction and rearrangements of theY parts might be resorted to without departing from the spirit of the invention as defined by the claims. l

Having described my invention, what I claim as new and desire to secure by Letters l Patent, is

1. A safety razor including, in combination, a handle, a guard mounted thereon, a rod slidable within said handle, a clamping plate pivotally carried by said rod whereby the clamping plate may be tilted with respect to said guard and a blade formed with acentrally disposed'apcrture to receive said clamping plate when the latter is in tilted position.

2. A safety razor including, in combination, a handle, a guard mounted thereon, a rod slidable within said handle, a clamping plate pivotally carried by said rod whereby theclamping plate may be tilted with respect to said guard, a blade formed with a centrally disposed aperture to receivesaid clamping plate when the latter is in tilted position and means forholding the parts in shaving position.

3. A safety razor, including in combination, a handle, a guard mounted on said handle, a rod slidable within said handle, a clamping plate pivotally carried by said rod whereby said clamping plate lnay assume a tilted position with respect to said guard and a razor blade formed with a centrally disposed aperture for receiving said clamping plate when the latter is in tilted position, opposite sides .of said aperture being nonparallel.

4. A safety razor, comprising ahandle, a, guard mounted on said handle, a rod slidable within said handle, a clamping plate pivotally carried by said rod whereby the clamping plate may assume a tilted position with respect to said guard, a blade formed with a centrally disposed aperture for engagement with said clamping plate when the latter is in tilted positions, position lugs carried by said guard and additional apertures in said blade for cooperation with said lugs.

In testimony whereof I allix my signature.

HYMAN R. SEGAL. 

